Native Mac app for analyzing massive JSONL files (Suricata, Zeek, EDR, CloudTrail logs). Opens 5GB+ files in seconds, automatically flattens nested JSON into filterable columns, supports advanced queries like "alert.severity <= 2".

Built with C++ + simdjson for actual native performance, not Electron. 6MB app, zero telemetry, data stays local.

https://iotdata.systems/jsonlviewerpro/